Johnson Controls SABROE UniSAB III User Manual

Engineering manual - UniSAB III 1.10.8
001930 en 2021.06
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Calibration
7.6 Electrical slide systems (certain screw compressors)
The built-in capacity slide position transmitter must be adjusted correctly to ensure safe and reliable
slide control. This adjustment must always be carried out as described in 7.6.2 Transmitter adjustment.
Afterwards, the capacity signal must be adjusted by software as described in 7.5.14 Software calibra-
tion, hydraulic slide systems.
7.6.1 Manual slide positioning
Contrary to hydraulic slides, the electrical capacity slide can be positioned manually for testing. This is
useful when performing transmitter adjustment and software adjustment. Select Setup/Compr. Control
Mode = Stop and then Setup/Configuration/Calibrate/Position.
The following picture will appear:
While this picture is open (and UniSAB III is still in Stop mode) the capacity slide can be moved by
means of /CAP. UP and /CAP. DOWN.
Note that when reaching the end stop, the shutdown Capacity error will be displayed after two seconds.
Release the button at once and reset the shutdown.
7.6.2 Transmitter adjustment
The capacity transmitter is fitted with a single calibration button surrounded by a green and a red LED
as shown in Fig. 42.
Fig. 42: Capacity transmitter
F2
F3
LED position
(Green)
Calibration
push button
LED-working
(Red)
Normally, not visible
For calibration
remove cover

Johnson Controls SABROE UniSAB III Specifications

General

Brand	Johnson Controls
Model	SABROE UniSAB III
Category	Control Systems
Language	English